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` ° <br /> is <br /> 3 <br /> 00 MeRE <br /> Run <br /> — rnrirnnmrrrla!SrdeeGnros <br /> ,y Rr5NA Conrfr,u-Y Through AplPhed Srirnrr, <br /> F,gincrring.0(onclrtrr fiva <br /> {I fry 200 <br /> r K.uu fur Currinv,a,CA�351vU <br /> I'4urru'0)10 852-6690 <br /> FAX i41h) IF)?-h6tSl3 <br /> WORK PLAN: <br /> ADDITIONAL END UATIO VAPOR-EXTRACTION SOIL <br /> TEST GROUND NATER <br /> at <br /> Unocal Service Station No. 6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> for <br /> t, Unocal Corporation <br /> INTRODUCTION <br /> At the request of Unocal Corporation (Unocal), Applied GeoSystems, Inc./RESNr`o <br /> Industries (RESNA)is submitting this work plan to further assess soil and ground water of <br /> r <br /> the water table aquifer, and perform a vapor-extraction test at Unocal Service Station No. <br /> en <br /> esent in the rive <br /> 69$1 in Stockton, California. Because ground water has not erdetected in water <br /> monitoring welts since October 1990, and dissolved hydrocarbonswere <br /> +� samples collected previously from the wells, San Joaquin County Public Health Services, <br /> Environmental Health Division(SJPHS) has requested Unocal to install deeper monitoring <br /> wells (Cotulla, 1991)• The purpose of this work is to evaluate the lateral and vertiral extent <br /> of dissolved hydrocarbons in soli and ground water beneath xtion as'aesoilye medialioln <br /> parameters of sediments, and the feasibility of using vapor <br /> conditions indicate that vapor-extraction of the soil is warranted. <br /> alternative, if soil <br /> 39031-aw <br />